Probability Flashcards
1
Q
There are 18 cards in a deck. 12 of them are red and 6 of them are black. What is the probability to get a black card?
A
1/3
2
Q
What is the probability that you will drink to day
A
0.9-very likely
3
Q
What is the probability that it is your friends birthday today and you forgot?
A
0.2- unlikely (unless your forgetful then it could be higher)
4
Q
There are 8 red balls, 6 green balls and 7 blue balls in a bag. Whats the probability of pulling out a blue ball?
A
(8+6+7)=21
7/21=1/3
Answer=1/3
5
Q
12 there are socks. 3 of them are green. What fraction of them are?
A
3/12 = 1/4
